291 



Neliunhium speciosuui, Wild. iNympheaceae) : — Tropical Asia. 



Neptunia Oleracen, 'Lour. iLeguminosae) : — The water sensitive 

 plant, a floating plant with sensitive leaves, and heads of yellow 

 flowers. Formerly cultivated as a vegetable. 



Ottelia alisiuoides Vtrs. {Hydrocharideae) : — A pretty aquatic for 

 pot cultivation, flowers white. — Malay. 



Ouvirandra fenestralis {Naiadaceae) : — Madagascar. 



Philydnwi lanuginssum {Philydraceae) : — A stiff leaved plant with 

 yellow flow'ers for pond edges. — Asia and Australia. 



Pistia Stratiotes L. {Aroideae) : — Tropics. 



Sagittaria Sagittifolia, L. {Alismaceae) .-—Europe and Asia. 



Susum Anthelminticum, Bl. {Flagellarieae) : — Malaya. 



Trapa Nanoutans L. {Onagraceae) : — The water chestnut. A 

 floating aquatic. — China. 



Utricularia exoleta R. Br. and U. Jlexuosa VahL {Lentibulariaceae) : — 

 Submerged aquatics with bright yellow flowers borne above the 

 water. — Tropical Asia. 



Victoria Regia hinde. {iVympheaceae : — Brazil. 



THE APPLICATION OF LIME IN AGRICULTURAL 

 PRACTICE, WITH PARTICULAR REFERENCE 

 TO PARA RUBBER TREES. 



By B. J. Eaton, f.i.c, f.c.s., Agricultural Chemist, F.M.S. 



Considerable interest is now being taken by planters in the 

 Federated Malay States in the subject of manuring, and requests for 

 soil analyses and advice re-manuring are being constantly received 

 by the Department of Agriculture, F.M.S. 



A number of enquiries has been received asking particularly for 

 advice re-lime, its method of application, and the benefits to be derived 

 from it, in consequence of which it has been thought advisable to pub- 

 lish this article, which, although it makes no claim to originality, it is 

 hoped will explain the value of lime as a factor in agriculture. 



Soils of the Federated Malay States. 



In general it may be stated that soils in this country are deficient 

 in the essential mineral constituents, viz., lime, phosphates and 

 potash and as a rule contain fairly large quantities of nitrogen, 

 especially where the land has previously been under virgin jungle. 



